CN103217766A - Method adopting beam expanding lens to adjust laser beams to be coaxial - Google Patents
Method adopting beam expanding lens to adjust laser beams to be coaxial Download PDFInfo
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- CN103217766A CN103217766A CN2012100165842A CN201210016584A CN103217766A CN 103217766 A CN103217766 A CN 103217766A CN 2012100165842 A CN2012100165842 A CN 2012100165842A CN 201210016584 A CN201210016584 A CN 201210016584A CN 103217766 A CN103217766 A CN 103217766A
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- expanding lens
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Abstract
The invention relates to a method adopting a beam expanding lens to adjust laser beams to be coaxial. The method adopting the beam expanding beam to adjust the laser beams to be coaxial mainly solves the technical problem that laser beams are difficult to meet an optical coaxial requirement when a beam expanding lens is mounted in the prior art. According to the method adopting the beam expanding beam to adjust the laser beams to be coaxial, a beam expanding lens photoelectricity coaxial collimator is used and comprises a cylinder-shaped lens barrel, a laser inlet is formed at one end of the lens barrel, a laser outlet is formed at the other end of the lens barrel, one end, provided with the laser inlet, of the lens barrel is connected with an optical fiber head of a laser, the other end, provided with the laser outlet, of the lens barrel is provided with threads, the lens barrel is matched with an incidence end of the beam expanding lens through the threads, the laser inlet and the laser outlet are respectively provided with a photoresistor, and round holes enabling the laser beams to pass are formed in the centers of the photoresistors. The problem is solved, and the method adopting the beam expanding beam to adjust the laser beams to be coaxial can be used in industrial production of collimating beam expanding lenses and tool jigs with coaxial laser beams.
Description
Technical field
The present invention relates to a kind of method that adopts beam expanding lens to regulate laser beams coaxial.
Background technology
After the laser process equipment assembling is finished, need adjust light path, the principle of adjustment is to want each device in the light path to reach necessarily required optics right alignment.Beam expanding lens is as the additional device in the light path, play the effect that increases beam diameter, if but its axis and laser beam misalignment of axe cross conference and cause through expanding laser beam energy behind the bundle along the axle center skewness, as Fig. 1, so will be to influencing the cut quality of laser.It is whether visual laser beam passes through along beam expanding lens light inlet center that beam expanding lens was installed in the past, and error is very big, needs to install repeatedly to adjust, and is not easy to reach the coaxial requirement of optics.
The invention provides the coaxial collimating apparatus of a kind of beam expanding lens photoelectricity, this part is installed in is easy on the beam expanding lens adjust to beam expanding lens and laser beam coaxial.
Summary of the invention
Technical matters to be solved by this invention is that the installation beam expanding lens that exists in the prior art is whether visual laser beam passes through along beam expanding lens light inlet center, error is very big, need to install repeatedly to adjust, be not easy to reach the coaxial technical matters of optics, the method that provides a kind of new employing beam expanding lens to regulate laser beams coaxial, the used coaxial collimating apparatus of beam expanding lens photoelectricity of this method has easily adjusts to coaxial advantage with beam expanding lens and laser beam.
For solving the problems of the technologies described above, the technical solution used in the present invention is as follows: a kind of method that adopts beam expanding lens to regulate laser beams coaxial comprises following step:
A) beam expanding lens is installed in the optical system;
B) earlier beam expanding lens axle center and laser beam axle center are adjusted to parallelly, make photoelectric sensor sensitization in translation beam expanding lens position respectively at vertical plane, surface level then;
C) send signal behind the sensor photosensitive, pass to outer computer, draw facula position through the Computing analysis;
D) regulate beam expanding lens and make laser beam beat the coaxial position that the hot spot arrival on sensor pre-sets, guaranteed the right alignment of beam expanding lens and laser beam, promptly finish debuging of beam expanding lens.
Described beam expanding lens comprises the coaxial collimating apparatus of cylindrical lens barrel and photoelectricity; The coaxial collimating apparatus of beam expanding lens photoelectricity comprises coupling shaft and photoelectric sensor, and photoelectric sensor is gapless to be fixed in the coupling shaft, and photoelectric sensor links to each other with outer computer.
The coaxial collimating apparatus of beam expanding lens photoelectricity can also adopt following technical scheme, the coaxial collimating apparatus of beam expanding lens photoelectricity comprises cylindrical lens barrel, lens barrel one end has light inlet, the other end has light-emitting window, the end that lens barrel has light inlet links to each other with the laser fiber head, and the end with light-emitting window has screw thread, and lens barrel cooperates by described screw thread and beam expanding lens incident end, light inlet and light-emitting window have photoresistance respectively, and the photoresistance center has the circular hole that laser beam passes through.Described Circularhole diameter is bigger 1～50 micron than the laser beam diameter that passes through.When laser is penetrated in photoresistance, the photoresistance meeting produces signal.
Method with above-mentioned this collimator adjustment laser beams coaxial, beam expanding lens is installed in the optical system, with beam expanding lens and the coaxial collimating apparatus of beam expanding lens photoelectricity by being threaded togather, regulate subassembly, make laser beam pass through two apertures of the coaxial collimating apparatus of beam expanding lens photoelectricity, if subassembly has or is parallel to optical axis skew is arranged, light all can some drop in the photoresistance, photoresistance will produce signal, all do not have photoreceptor signal when feedback when being adjusted to two photoresistance, beam expanding lens just and laser beam reached the optics right alignment.
The coaxial collimating apparatus of beam expanding lens photoelectricity is the device of and frock and information feedback and one, one end is the threaded hole that cooperates with beam expanding lens incident end, there are two centers to have photoresistance at the near-end of distance beam expanding lens light inlet and far-end than the aperture of the big 0.05mm of laser beam diameter, a clamping turning of device forms, and has guaranteed that the right alignment of threaded hole and aperture has guaranteed that promptly collimating apparatus and beam expanding lens are coaxial.In the time of will being installed in beam expanding lens in the optical system in the light modulation process, with beam expanding lens and the coaxial collimating apparatus of beam expanding lens photoelectricity by being threaded togather, regulating subassembly makes laser beam pass through two apertures of the coaxial collimating apparatus of beam expanding lens photoelectricity, if subassembly tilts or is parallel to optical axis skew is arranged, light all can some drop in the photoresistance, photoresistance will produce signal so, all do not have photoreceptor signal when feedback when being adjusted to two photoresistance, beam expanding lens has just reached the requirement of optics right alignment.
Adopt method of the present invention, solved in the past beam expanding lens in the optical system of packing into, right alignment is difficult to regulate the problem that the precision of adjusting is difficult to guarantee.And easy to operate, be easy to control, obtained better technical effect.
Description of drawings
Fig. 1 is beam expanding lens laser energy distribution schematic diagram when not coaxial.
Fig. 2 is the coaxial collimating apparatus synoptic diagram of beam expanding lens photoelectricity.
Fig. 3 is the coaxial collimating apparatus sectional view of beam expanding lens photoelectricity.
Fig. 4 is for installing the beam expanding lens of the coaxial collimating apparatus of photoelectricity
Fig. 5 is the laser energy distribution schematic diagram after the coaxial collimator adjustment of photoelectricity.
Among Fig. 1,1 is laser fiber bar head; 2 is laser beam; 3 is condenser lens; 4 for laser energy distributes, and 5 is the beam expanding lens axle center; 6 is the laser beam axle center.
Among Fig. 2,1 is photoelectric sensor; 2 is coupling shaft.
Among Fig. 3,1 is photoelectric sensor; 2 is coupling shaft.
Among Fig. 4,1 is laser fiber bar head; 2 is laser beam; 3 is condenser lens; 4 is the coaxial collimating apparatus of photoelectricity; 5 is photoelectric sensor; 6 is coupling shaft.
Among Fig. 5,1 is laser fiber bar head; 2 is laser beam; 3 is condenser lens; 4 are the laser energy distribution.
The invention will be further elaborated below by specific embodiment, but be not limited only to present embodiment.
Specific embodiment
[embodiment 1]
A kind of method that adopts beam expanding lens to regulate laser beams coaxial comprises following step:
A) beam expanding lens is installed in the optical system;
B) earlier beam expanding lens axle center and laser beam axle center are adjusted to parallelly, make photoelectric sensor sensitization in translation beam expanding lens position respectively at vertical plane, surface level then;
C) send signal behind the sensor photosensitive, pass to outer computer, draw facula position through the Computing analysis;
D) regulate beam expanding lens and make laser beam beat the coaxial position that the hot spot arrival on sensor pre-sets, guaranteed the right alignment of beam expanding lens and laser beam, promptly finish debuging of beam expanding lens.
Described beam expanding lens comprises the coaxial collimating apparatus of cylindrical lens barrel and photoelectricity; The coaxial collimating apparatus of beam expanding lens photoelectricity comprises coupling shaft and photoelectric sensor, and photoelectric sensor is gapless to be fixed in the coupling shaft, and photoelectric sensor links to each other with outer computer.
The coaxial collimating apparatus of beam expanding lens photoelectricity as shown in Figure 2, comprises coupling shaft and photoelectric sensor, and photoelectric sensor is gapless to be fixed in the coupling shaft, and photoelectric sensor links to each other with outer computer.
[embodiment 2]
A kind of method that adopts beam expanding lens to regulate laser beams coaxial is with embodiment 1.
Described beam expanding lens comprises the coaxial collimating apparatus of cylindrical lens barrel and photoelectricity; The coaxial collimating apparatus of beam expanding lens photoelectricity comprises coupling shaft and photoelectric sensor, and photoelectric sensor is gapless to be fixed in the coupling shaft, and photoelectric sensor links to each other with outer computer.
The coaxial collimating apparatus of beam expanding lens photoelectricity comprises coupling shaft and photoelectric sensor, and photoelectric sensor is fixed in the coupling shaft with glue is gapless, and photoelectric sensor links to each other with outer computer.Fig. 3 is the coaxial collimating apparatus sectional view of beam expanding lens photoelectricity.
[embodiment 3]
A kind of method that adopts beam expanding lens to regulate laser beams coaxial is with embodiment 1.
Described beam expanding lens comprises the coaxial collimating apparatus of cylindrical lens barrel and photoelectricity; The coaxial collimating apparatus of beam expanding lens photoelectricity comprises coupling shaft and photoelectric sensor, and photoelectric sensor is gapless to be fixed in the coupling shaft, and photoelectric sensor links to each other with outer computer.
The coaxial collimating apparatus of beam expanding lens photo-electric is an independent device, is made up of coupling shaft and photoelectric sensor, and photoelectric sensor does not have being fixed on glue of gap dress and connects in the axle.In the time of will being installed in beam expanding lens in the optical system in the light modulation process, earlier be adjusted to parallel with the laser beam axle center beam expanding lens axle center, make photoelectric sensor sensitization in translation beam expanding lens position respectively at vertical plane, surface level then, send signal behind the sensor photosensitive, draw facula position through the Computing analysis, regulating beam expanding lens makes laser beam beat hot spot on sensor to arrive the coaxial position that pre-sets and can finish debuging of beam expanding lens, as Fig. 3, promptly guaranteed the right alignment of beam expanding lens and laser beam.
[embodiment 4]
A kind of method that adopts beam expanding lens to regulate laser beams coaxial is with embodiment 1.
Beam expanding lens comprises cylindrical lens barrel and coaxial collimating apparatus, and described coaxial collimating apparatus comprises coupling shaft and photoelectric sensor, and photoelectric sensor is gapless to be fixed in the coupling shaft, and photoelectric sensor links to each other with outer computer.
[embodiment 5]
A kind of control method of coaxial laser light beam comprises following step:
A) embodiment 4 described beam expanding lenss are installed in the optical system;
B) earlier beam expanding lens axle center and laser beam axle center are adjusted to parallelly, make photoelectric sensor sensitization in translation beam expanding lens position respectively at vertical plane, surface level then;
C) send signal behind the sensor photosensitive, pass to outer computer, draw facula position through the Computing analysis;
D) regulate beam expanding lens and make laser beam beat the coaxial position that the hot spot arrival on sensor pre-sets, guaranteed the right alignment of beam expanding lens and laser beam, promptly finish debuging of beam expanding lens.
The coaxial collimating apparatus of described beam expanding lens photo-electric is an independent device.Be made up of coupling shaft and photoelectric sensor, photoelectric sensor does not have being fixed on glue of gap dress and connects in the axle.In the time of will being installed in beam expanding lens in the optical system in the light modulation process, earlier be adjusted to parallel with the laser beam axle center beam expanding lens axle center, make photoelectric sensor sensitization in translation beam expanding lens position respectively at vertical plane, surface level then, send signal behind the sensor photosensitive, draw facula position through the Computing analysis, regulating beam expanding lens makes laser beam beat hot spot on sensor to arrive the coaxial position that pre-sets and can finish debuging of beam expanding lens, promptly guaranteed the right alignment of beam expanding lens and laser beam, as Fig. 4.
[embodiment 6]
A kind of control method of coaxial laser light beam, beam expanding lens is installed in the optical system, with beam expanding lens and the coaxial collimating apparatus of beam expanding lens photoelectricity by being threaded togather, regulate subassembly, make laser beam pass through two apertures of the coaxial collimating apparatus of beam expanding lens photoelectricity, if subassembly has or is parallel to optical axis skew is arranged, light all can some drop in the photoresistance, photoresistance will produce signal, all do not have photoreceptor signal when feedback when being adjusted to two photoresistance, beam expanding lens just and laser beam reached the optics right alignment.
Described beam expanding lens, comprise cylindrical lens barrel and coaxial collimating apparatus, described coaxial collimating apparatus comprises cylindrical lens barrel, and lens barrel one end has light inlet, the other end has light-emitting window, the end that lens barrel has light inlet links to each other with the laser fiber head, and the end with light-emitting window has screw thread, and lens barrel cooperates by described screw thread and beam expanding lens incident end, light inlet and light-emitting window have photoresistance respectively, and the photoresistance center has the circular hole that laser beam passes through.Described Circularhole diameter is bigger 20 microns than the laser beam diameter that passes through.A part drops in the photoresistance, and photoresistance will produce signal so.
[embodiment 7]
The coaxial collimating apparatus of beam expanding lens photoelectricity is the device of and frock and information feedback and one, one end is the threaded hole that cooperates with beam expanding lens incident end, there are two centers to have photoresistance at the near-end of distance beam expanding lens light inlet and far-end than the aperture of the big 0.05mm of laser beam diameter, a clamping turning of device forms, and has guaranteed that the right alignment of threaded hole and aperture has guaranteed that promptly collimating apparatus and beam expanding lens are coaxial.In the time of will being installed in beam expanding lens in the optical system in the light modulation process, with beam expanding lens and the coaxial collimating apparatus of beam expanding lens photoelectricity by being threaded togather, regulating subassembly makes laser beam pass through two apertures of the coaxial collimating apparatus of beam expanding lens photoelectricity, if subassembly has or is parallel to optical axis skew is arranged, light all can some drop in the photoresistance, photoresistance will produce signal so, all there be not photoreceptor signal when feedback when being adjusted to two photoresistance, beam expanding lens has just reached the requirement of optics right alignment, as shown in Figure 3.
Beam expanding lens of the present invention had solved in the past beam expanding lens in the optical system of packing into, and right alignment is difficult to regulate the problem that the precision of adjusting is difficult to guarantee.
Claims (2)
1. method that adopts beam expanding lens to regulate laser beams coaxial comprises following step:
A) beam expanding lens is installed in the optical system;
B) earlier beam expanding lens axle center and laser beam axle center are adjusted to parallelly, make photoelectric sensor sensitization in translation beam expanding lens position respectively at vertical plane, surface level then;
C) send signal behind the sensor photosensitive, pass to outer computer, draw facula position through the Computing analysis;
D) regulate beam expanding lens and make laser beam beat the coaxial position that the hot spot arrival on sensor pre-sets, guaranteed the right alignment of beam expanding lens and laser beam, promptly finish debuging of beam expanding lens.
2. according to claim 1, described beam expanding lens comprises the coaxial collimating apparatus of cylindrical lens barrel and photoelectricity; The coaxial collimating apparatus of beam expanding lens photoelectricity comprises coupling shaft and photoelectric sensor, and photoelectric sensor is gapless to be fixed in the coupling shaft, and photoelectric sensor links to each other with outer computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100165842A CN103217766A (en) | 2012-01-19 | 2012-01-19 | Method adopting beam expanding lens to adjust laser beams to be coaxial |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100165842A CN103217766A (en) | 2012-01-19 | 2012-01-19 | Method adopting beam expanding lens to adjust laser beams to be coaxial |
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| CN103217766A true CN103217766A (en) | 2013-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012100165842A Pending CN103217766A (en) | 2012-01-19 | 2012-01-19 | Method adopting beam expanding lens to adjust laser beams to be coaxial |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0872300A (en) * | 1994-09-06 | 1996-03-19 | Ricoh Co Ltd | Light source |
| US5818645A (en) * | 1996-07-16 | 1998-10-06 | Management Graphics, Inc. | Multimode optical source and image scanning apparatus using the same |
| CN1790092A (en) * | 2005-12-21 | 2006-06-21 | 哈尔滨工业大学 | High precision light beam coaxiality adjusting method |
| CN201758240U (en) * | 2010-05-21 | 2011-03-09 | 太原理工大学 | Semiconductor laser collimation beam expander |
-
2012
- 2012-01-19 CN CN2012100165842A patent/CN103217766A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0872300A (en) * | 1994-09-06 | 1996-03-19 | Ricoh Co Ltd | Light source |
| US5818645A (en) * | 1996-07-16 | 1998-10-06 | Management Graphics, Inc. | Multimode optical source and image scanning apparatus using the same |
| CN1790092A (en) * | 2005-12-21 | 2006-06-21 | 哈尔滨工业大学 | High precision light beam coaxiality adjusting method |
| CN201758240U (en) * | 2010-05-21 | 2011-03-09 | 太原理工大学 | Semiconductor laser collimation beam expander |
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Application publication date: 20130724 |
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